The cost of an iPhone is $899.99 plus 8.5% tax. What is the cost of tax for the iPhone?

Which matrix can be multiplied to the left of a vector matrix to get a new vector matrix ?

If kn = 9 cm, mn = 21 cm, rs = 42 cm, and ps = 18 cm, what is the scale factor of figure klmn to figure pqrs?

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays